.wrapper {
    width: $size;
    height: 550px;
    margin: 0 auto;
}

.banner {
    position: relative;

    ul {
        display: flex;
        justify-content: center;

        li {
            list-style: none;
            position: absolute;
            opacity: 0;

            a {
                text-decoration: none;

                img {
                    width: 1900px;
                    height: 550px;
                }
            }
        }

        li:nth-of-type(1) {
            opacity: 1;
        }
    }

    ol {
        position: absolute;
        right: 0;
        top: 448px;
        text-align: right;

        li {
            list-style: none;
            width: 12px;
            height: 12px;
            background: transparent;
            border-radius: 50%;
            border: 1px solid #ffffff;
            float: left;
            margin-left: 7px;
        }
    }

    .left,
    .right {
        position: relative;
        display: inline-block;
        width: 80px;
        height: 80px;
        background: url(../img/icon.png) no-repeat transparent;
        border-radius: 50%;
        z-index: 1;
    }

    .left {
        left: 204px;
        top: 200px;
        background-position: 0 -72px;

        &:hover {
            background-position: -240px -72px;
        }
    }

    .right {
        left: 1132px;
        top: 200px;
        background-position: -80px -72px;

        &:hover {
            background-position: -160px -72px;
        }
    }

    .active {
        background: #ffffff;
    }
}